Investigation of the design of creep damage constitutive equations for low stress level

Yuandi Wu; Shenhao Feng; Joan Lu; Qiang Xu

doi:10.1080/09603409.2021.1968101

Investigation of the design of creep damage constitutive equations for low stress level

Yuandi Wu, Shenhao Feng, Joan Lu, Qiang Xu

Research output: Contribution to journal › Conference article › peer-review

Abstract

This paper reports the latest attempt to model the creep deformation and rupture for high Cr (91) alloy under low stress range. While accurately predicting the creep deformation and damage and the ultimate rupture is paramount important, both for the academic research and industrial applications, the current situation is unsatisfactory, particularly for the lower stress range. This paper systematically investigates the formulation as well as tentatively underlines the scientific reasons, to improve and accurately predict the creep deformation, creep damage and the ultimate rupture of P91 in the stress range of 80–125 MPa. This paper contributes to the knowledge on how to accurately model the creep deformation and damage for P91. Furthermore, it contributes to the methodology through the development of a generic model.

Original language	English
Pages (from-to)	391-402
Number of pages	12
Journal	Materials at High Temperatures
Volume	38
Issue number	5
Early online date	24 Aug 2021
DOIs	https://doi.org/10.1080/09603409.2021.1968101
Publication status	Published - 1 Sep 2021
Event	High Temperature Plant Materials, Inspection, Monitoring & Assessment (MIMA) - On-Line from London, London, United Kingdom Duration: 27 Oct 2020 → 28 Oct 2020 http://www.etd-consulting.com/forthcoming-events-2/2020/10/27/etds-on-line-conf-high-temp-plant-materials-inspection-monitoring-and-assessment (Homepage) https://static1.squarespace.com/static/5304e62de4b00674c06afd5c/t/5f92e1f4c1356825545d850d/1603461623458/MIMA+Conf.+Final+Program+27-28+Oct.+23.pdf (Programme)

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abstract = "This paper reports the latest attempt to model the creep deformation and rupture for high Cr (91) alloy under low stress range. While accurately predicting the creep deformation and damage and the ultimate rupture is paramount important, both for the academic research and industrial applications, the current situation is unsatisfactory, particularly for the lower stress range. This paper systematically investigates the formulation as well as tentatively underlines the scientific reasons, to improve and accurately predict the creep deformation, creep damage and the ultimate rupture of P91 in the stress range of 80–125 MPa. This paper contributes to the knowledge on how to accurately model the creep deformation and damage for P91. Furthermore, it contributes to the methodology through the development of a generic model.",

keywords = "creep damage constitutive equations, P91, chromium steels, low stress, creep damage mechanics",

author = "Yuandi Wu and Shenhao Feng and Joan Lu and Qiang Xu",

note = "Funding Information: The initial work was carried out by Mr Wu in the individual project of the MSc programme. The paper was finalised and submitted during the first year of the PhD research, where Mr Yuandi Wu and Mr Shenghao Feng are grateful for the University's Vice-chancellor PhD scholarship. Publisher Copyright: {\textcopyright} 2021 Informa UK Limited, trading as Taylor & Francis Group. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; High Temperature Plant Materials, Inspection, Monitoring & Assessment (MIMA) ; Conference date: 27-10-2020 Through 28-10-2020",

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doi = "10.1080/09603409.2021.1968101",

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AU - Wu, Yuandi

AU - Feng, Shenhao

AU - Lu, Joan

AU - Xu, Qiang

N1 - Funding Information: The initial work was carried out by Mr Wu in the individual project of the MSc programme. The paper was finalised and submitted during the first year of the PhD research, where Mr Yuandi Wu and Mr Shenghao Feng are grateful for the University's Vice-chancellor PhD scholarship. Publisher Copyright: © 2021 Informa UK Limited, trading as Taylor & Francis Group. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - This paper reports the latest attempt to model the creep deformation and rupture for high Cr (91) alloy under low stress range. While accurately predicting the creep deformation and damage and the ultimate rupture is paramount important, both for the academic research and industrial applications, the current situation is unsatisfactory, particularly for the lower stress range. This paper systematically investigates the formulation as well as tentatively underlines the scientific reasons, to improve and accurately predict the creep deformation, creep damage and the ultimate rupture of P91 in the stress range of 80–125 MPa. This paper contributes to the knowledge on how to accurately model the creep deformation and damage for P91. Furthermore, it contributes to the methodology through the development of a generic model.

AB - This paper reports the latest attempt to model the creep deformation and rupture for high Cr (91) alloy under low stress range. While accurately predicting the creep deformation and damage and the ultimate rupture is paramount important, both for the academic research and industrial applications, the current situation is unsatisfactory, particularly for the lower stress range. This paper systematically investigates the formulation as well as tentatively underlines the scientific reasons, to improve and accurately predict the creep deformation, creep damage and the ultimate rupture of P91 in the stress range of 80–125 MPa. This paper contributes to the knowledge on how to accurately model the creep deformation and damage for P91. Furthermore, it contributes to the methodology through the development of a generic model.

KW - creep damage constitutive equations

KW - P91

KW - chromium steels

KW - low stress

KW - creep damage mechanics

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EP - 402

JO - Materials at High Temperatures

JF - Materials at High Temperatures

SN - 0960-3409

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T2 - High Temperature Plant Materials, Inspection, Monitoring & Assessment (MIMA)

Y2 - 27 October 2020 through 28 October 2020

ER -

Investigation of the design of creep damage constitutive equations for low stress level

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